Avsnitt 20

Canada's Great Bear Rainforest is a place where the rainforest and Pacific Ocean meet. This special forest is home to countless spruce and fir trees. One very special species towers above them all, giving many animals shelter: the giant arbor vitae, or ‘Tree of Life’. Forest and ocean live in symbiosis here. When heavy rainfall erodes the soil, nutrients are transported through the rivers to the sea, where they benefit the humpback whales . Nowadays, however, this complex ecosystem is threatened by massive logging. Here, too, humans are jeopardizing a balance that has existed for thousands of years.